Silencer tube



FIG. 1 is a front and side perspective view of a silencer tube showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an enlarged cross sectional view thereof, taken along the lines 3—3 of FIG. 2; and,

FIG. 4 is an end view thereof. 

The ornamental design for a silencer tube, as shown and described. 